condition mean min max 4 h after light 245.7 245.7 245.7 8 h after light 165.0 124.4 205.6 12 h after light 168.45 151.4 185.5 4 h after dark 157.25 139.9 174.6 8 h after dark 136.95 135.7 138.2 12 h after dark 176.9 143.8 210.0